Stabilizing Patents (Class 430/372)
  • Patent number: 4980272
    Abstract: A method of processing a photosensitive material with a final processing solution is disclosed. The photosensitive material comprises at least one compound selected from the group consisting of compounds represented by the following Formulas (AI-I), (AI-II), (AI-III), (AI-IV) and (BS-I), a concentration of a soluble iron salt in the final processing solution is at least 5.times.10.sup.-3 /l and a processing time of the final processing solution is not more than 30 seconds.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: December 25, 1990
    Assignee: Konica Corporation
    Inventors: Satoru Kuse, Shigeharu Koboshi, Masao Ishikawa
  • Patent number: 4980275
    Abstract: A photographic silver halide material comprises an organophosphorus dye stabilizer represented by the formula: ##STR1## wherein A represents the atoms necessary to complete a substituted or unsubstituted heterocyclic ring;R.sub.1 represents substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted aryl, or a heterocyclic group;Y is an oxygen or a sulfur atom; and,n is 0 or 1.Such a photographic silver halide material enables improved stability of dye images in the material.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: December 25, 1990
    Assignee: Eastman Kodak Company
    Inventor: John D. Goddard
  • Patent number: 4968591
    Abstract: A process for processing a silver halide color photographic material is described comprising subjecting a silver halide color photographic material comprising a support having provided thereon at least one photographic emulsion layer containing at least one kind of pyrazoloazole series magenta coupler represented by general formula (I) to photographic processing using a bath containing at least 1.times.10.sup.-4 mol/liter of a soluble iron salt as the final bath: ##STR1## wherein Za and Zb each represents .dbd.CH--, (wherein R.sub.2 represents a hydrogen atom or a substituent) or =N-; R.sub.1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group releasably upon coupling with the oxidation product of an aromatic primary amine developing agent; when Za=Zb is a carbon-carbon double bond, the double bond may be a part of an aromatic ring; the magenta coupler may form a dimer or polymer at R.sub.1, R.sub.2 or X; when at least one of said Za and Zb is ##STR2## at least one of the R.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: November 6, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Takeshi Hirose, Nobuo Furutachi
  • Patent number: 4962014
    Abstract: A process for processing a silver halide color photographic material after imagewise exposing said silver halide color photographic material, comprising color developing, blixing, and then washing, wherein the processing time for said blixing is from about 30 seconds to about 70 seconds, the blixing liquid for said blixing contains from about 0.08 to about 0.30 mol/liter of sulfite ion, and the replenishing amount of washing water for said washing is from about 3 times to about 50 times the amount of processing liquid carried from the previous bath per unit area of said color photographic material.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: October 9, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Junya Nakajima
  • Patent number: 4960684
    Abstract: A silver halide color photographic material is processed with a color developer containing at least one compound of the following formula (I) and at least one compound of the following formula (II): ##STR1## where R.sup.1, R.sup.2 and R.sup.3 independently represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group;R.sup.4 represents a hydrogen atom, a hydroxyl group, a hydrazino group, an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, a carbamoyl group or an amino group;X.sup.1 represents a divalent group;n represents 0 or 1; and when is 0, R.sup.4 represents an alkyl group, an aryl group or a heterocyclic group; and R.sup.3 and R.sup.4 may together form a heterocyclic group; ##STR2## where Z represents an atomic group necessary for completing an aromatic nucleus.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: October 2, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Hiroshi Fujimoto, Morio Yagihara, Kazuto Andoh
  • Patent number: 4960683
    Abstract: A method for processing a black-and-white photosensitive material comprising the steps of:(a) exposing a silver halide photosensitive material having been spectrally sensitized with a sensitizing dye;(b) developing the exposed material;(c) fixing the developed material; and(d) thereafter at least one step selected from washing the material and stabilizing the material;at least one of the fixing, washing and stabilizing steps being performed in the presence of at least one compound represented by formula (I) or (II) or a salt thereof; ##STR1## wherein A represents an atomic group necessary for forming a saturated or unsaturated 3-membered to 8-membered ring comprising at least one hetero atom selected from an oxygen atom, a nitrogen atom, a sulfur atom and a selenium atom; and M represents a hydrogen atom or a counter cation; andX--(R.sub.1 --S).sub.n --R.sub.2 --S--R.sub.3 --Y (II)wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, each represents an alkylene group; R.sub.1 and R.sub.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: October 2, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaki Okazaki, Akihiko Ikegawa, Minoeu Yamada, Kunio Steo
  • Patent number: 4956267
    Abstract: A method for forming a direct positive color image by image-wise exposing to light a light-sensitive material having at least one internal latent image type silver halide emulsion layer which is unfogged and color image-forming couplers on a support; either (1) subjecting the resulting material to fogging exposure to light and/or processing it with a nucleating agent before development, and then developing the resulting material with a surface developing solution containing an aromatic primary amine type color developing agent, or (2) developing the material after the image-wise exposure with a surface developing solution containing an aromatic primary amine type color developing agent under fogging exposure and/or in the presence of a nucleating agent; and bleach-fixing the resulting material, wherein the color developing solution contains at least one compound selected from the group consisting of compounds represented by the following general formulae (I), (II), (III) and (IV): ##STR1## wherein X represent
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: September 11, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinji Ueda, Tatsuo Heki, Noriyuki Inoue, Takatoshi Ishikawa, Nobutaka Ohki, Morio Yagihara, Kiyoshi Morimoto, Hiroshi Fujimoto, Kazuto Andoh
  • Patent number: 4948710
    Abstract: A method of continuously processing an imagewise exposed silver halide color photographic light-sensitive material is described, in which subsequent to a bleach-fixing step or bleaching and fixing steps the material is washed in a water washing step in the presense of at least one compound represented by general formula (I): ##STR1## wherein M is a hydrogen atom, a lithium atom, a sodium atom, a potassium atom or an ammonium ion and each M may be the same or different.This method permits great reduction of the amount of water used in the washing step in the processing of silver halide color photographic light-sensitive materials.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: August 14, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Shinzo Kishimoto
  • Patent number: 4939072
    Abstract: A color photograph comprising a support having provided thereon at least one photographic layer, wherein said at least one photographic layer contains a storage stability improving compound which forms a chemically inert and substantially colorless compound by combining chemically with the oxidation product of an aromatic amine color developing agent remaining in said color photograph after color development processing.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: July 3, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Nobuo Seto, Osamu Takahashi, Hideaki Naruse
  • Patent number: 4939074
    Abstract: A method for processing a silver halide color photographic light-sensitive material which comprises color developing a silver halide color photographic light-sensitive material, the coating amount of elemental silver thereon being not more than 0.8 g/m.sup.2, bleach-fixing the developed material and then water washing and/or stabilizing the bleach-fixed material, the method being characterized in that the concentration of bleaching agents in a bleach-fixing solution is not more than 0.1 mole/l or that of fixing agents in the solution is not more than 0.50 mole/l.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: July 3, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Takatoshi Ishikawa
  • Patent number: 4939073
    Abstract: A method of stabilizing a light-sensitive silver halide color photographic material. A developed silver halide color photographic material is contacted, subsequent to a processing step in a bleach-fixing bath or a fixing bath and substantially accompanied by no washing step, at the last stage of color processing with a dye stabilizing solution adjusted to a pH value between 3.0 and 9.0 and containing a soluble complex salt of an iron ion obtained by reacting an iron ion with a compound selected from the group consisting of ##STR1## The soluble complex salt of an iron ion is present in the dye stabilizing solution at a concentration of at least 1.times.10.sup.-4 mol/l.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: July 3, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shigeharu Koboshi, Masayuki Kurematsu
  • Patent number: 4933271
    Abstract: Tetrahydrothiopyran compound of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, X and n are as defined in claim 1, are effective stabilizers for dyes and dye couplers in photographic layers. In particular, they provide protection from damage by light. They are preferably used in combination with a phenolic antioxidant.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: June 12, 1990
    Assignee: Ciba-Geigy AG
    Inventors: Jean Rody, David G. Leppard
  • Patent number: 4933264
    Abstract: In a process for the processing of color photographic silver halide material which has been exposed to form an image by development, bleachfixing, washing or stabilization and drying, the aqueous developer solution being free from benzyl alcohol, the pH value of the bleachfixing solution, which contains an iron(III) complex salt, being below 7 and the bleachfixing solution containing a compound corresponding to general formula (I) ##STR1## in which Z represents the atoms required to complete an optionally further substituted heterocyclic ring andR.sup.1 represents hydrogen or an alkali atom,and a coupler containing an activated methylene group, in which a hydrogen atom is replaced by alkyl, cycloalkyl, aryl or aralkyl and reacts with the oxidation product of the color developer to form colorless reaction products, bleaching can be carried out free from residual silver with a low regeneration level of the bleachfixing bath without any water-insoluble precipitates being formed.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: June 12, 1990
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Helmut Haseler, Heinz Meckl, Gustav Tappe
  • Patent number: 4927746
    Abstract: A stabilizing bath which provides reduced stain and enhanced dye stability for photographic color elements which are processed therein is comprised of a dye stabilizing agent, an alkanolamine, and polyacrylic acid or a water-soluble salt thereof. The stabilizing bath is used as a final processing bath which follows treatment of the element in a fixing or bleach-fixing bath containing a thiousulfate fixing agent. The alkanolamine functions to prevent the precipitation of sulfur resulting from carryover of the thiosulfate fixing agent into the stabilizing bath, while the polyacrylic acid or water-soluble salt thereof functions to avoid the formation of unwanted precipitates.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: May 22, 1990
    Assignee: Eastman Kodak Company
    Inventor: Paul A. Schwartz
  • Patent number: 4923782
    Abstract: A stabilizing bath which provides reduced stain and enhanced dye stability for photographic color elements which are processed therein is comprised of a dye stabilizing agent, an alkanolamine, and a hydrolyzed polymaleic anhydride or water-soluble salt thereof. The stabilizing bath is used as a final processing bath which follows treatment of the element in a fixing or bleach-fixing bath containing a thiosulfate fixing agent. The alkanolamine functions to prevent the precipitation of sulfur resulting from carryover of the thiosulfate fixing agent into the stabilizing bath, while the hydrolyzed polymaleic anhydride or water-soluble salt thereof functions to avoid the formation of unwanted precipitates.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: May 8, 1990
    Assignee: Eastman Kodak Company
    Inventor: Paul A. Schwartz
  • Patent number: 4917994
    Abstract: Color photographic print materials are described in which the surface pH is between about 4.0 and 5.3. The photographic elements have improved keeping properties under adverse conditions of storage.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: April 17, 1990
    Assignee: Eastman Kodak Company
    Inventors: Alberto M. Martinez, Ronald G. Olsen, Gary W. Visconte
  • Patent number: 4914007
    Abstract: An image forming process is disclosed, which comprises, in the photographic processing of silver halide color photographic materials, processing the color photographic material having a swelling degree of the photographic layer(s) of from 1.5 to 4.0 in the water washing step for the total water washing processing time of from 30 to 90 seconds. According to the process of the invention, the storage stability of color images obtained after processing and/or after lapsing a time does not reduce even when the water washing processing time is shortened.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: April 3, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Fujita, Takatoshi Ishikawa
  • Patent number: 4914008
    Abstract: There is disclosed a processing method of a light-sensitive silver halide color photographic material comprising, in a method of processing a light-sensitive silver halide color photographic material with a bleach-fixing solution after color developing, and successively with a stabilizing solution substituted for water washing, said bleach-fixing solution contains as main components an organic acid ferric complex salt with which a molecular weight of a free acid being not more than 280, a thiosulfate and a sulfite, and a processing time by said stabilizing solution substituted for water washing is 2 minutes or shorter.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: April 3, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masayuki Kurematsu, Shigeharu Koboshi
  • Patent number: 4912027
    Abstract: A silver halide photographic light-sensitive material which comprises at least one of 1H-pyrazolo[5,1-Cl-1,2,4-triazole-type magenta couplers substituted by a compound having the following Formula [I] in the third position and at least one of these compounds having the following Formulas [II], [III] and [IV];--R.sup.1 --SO.sub.2 --R.sup.2 Formula [I]wherein R.sup.1 is an alkylene group having not less than three carbon atoms in the straight-chain portion which serves as an linkage group between the third-position carbon of the 1H-pyrazolo[5,1-Cl-1,2,4-triazole and the --SO.sub.2 --, and R.sup.2 is an alkyl group, a cycloalkyl group, or aryl group; ##STR1## In Formula [II], Formula [III] and formula [IV], M is a metallic atom; X.sup.1 and X.sup.2 each is an oxygen atom, a sulfur atom, or a --NR.sup.7 --(wherein R.sup.7 is a hydrogen atom, an alkyl group, an aryl group or a hydroxyl group); X.sup.3 is a hydroxyl group or a mercapto group; Y is an oxygen atom or a sulfur atom; R.sup.3, R.sup.4, R.sup.5 and R.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: March 27, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toyoki Nishijima, Kaoru Onodera
  • Patent number: 4904574
    Abstract: A method of stabilizing organic base materials to light by allowing an organic base material to coexist with at least one type of metal complex which can be represented by the following general formula: ##STR1## wherein R.sup.1 to R.sup.4 are each independently hydrogen atoms, halogen atoms, cyano groups, hydroxyl groups or alkyl groups, aryl groups, cycloalkyl groups or heterocyclic groups which are bonded directly or indirectly via a divalent linking group to a carbon atom on the benzene ring. The R.sup.1 to R.sup.4 substituents may be the same or different, and moreover, two adjacent substituents from among the R.sup.1 to R.sup.4 substituents may be joined together to form a ring. Furthermore, the two R.sup.4 substituents may also be joined together to form a ring.The R.sup.5 and R.sup.6 substituents are independently hydrogen atoms, alkyl groups, alkylthio groups, aryl groups, arylthio groups, heterocyclicthio groups or cyano groups and they may be the same or different. In addition, the R.sup.5 and R.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: February 27, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshiaki Suzuki
  • Patent number: 4897339
    Abstract: A method for processing a silver halide color photographic material including a step of developing the material with a developer containing an aromatic primary amine color developing agent and at least one compounds represented by the following general formulae (Ia) and (Ib): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, each represents a hydrogen atom or an unsubstituted alkyl group; R.sup.5, R.sup.6 and R.sup.7, which may be the same or different, each represents an unsubstituted alkylene group; X.sup.1 and X.sup.2, which may be the same or different, each represents ##STR2## --O--, --S--, --CO--, --SO.sub.2 or --SO--, or a combination thereof, and R.sup.8 represents a hydrogen atom or an unsubstituted alkyl group; and m and n, which may be the same or different, each is 0, 1, 2 or 3; and ##STR3## wherein R.sup.13 represents a substituted alkylene group; and R.sup.9, R.sup.10, R.sup.11 and R.sup.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: January 30, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuto Andoh, Takatoshi Ishikawa, Morio Yagihara
  • Patent number: 4895786
    Abstract: In a processing method for silver halide color photosensitive material in which silver halide color photosensitive material is treated to produce a color dye image with a processing solution that has a fixing ability, and subsequently is not washed but treated with a washless stabilizing solution, the improvement comprising treating said silver halide color photosensitive material with a washless stabilizing solution that contains a triazinylstilbene optical brightening agent in the presence of an amount sufficient to stabilize the dye image and reduce staining of the photosensitive material of at least one compound represented by General Formula (I), (II), (II') or (II"): ##STR1##
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: January 23, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masayuki Kurematsu, Shigeharu Koboshi
  • Patent number: 4895793
    Abstract: A silver halide color photographic material, wherein a dye stabilizer as described in the claims is contained in a photographic layer such as a coupler-containing silver halide photosensitive emulsion layer. The dye images obtained eventually by developing the photographic material have improved fading or discoloring characteristics.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: January 23, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 4894318
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains an uncolored magenta coupler and at least one compound capable of reacting with and fixing formaldehyde vapor, and at least 30 mol % based on the total amount of the uncolored magenta coupler present in the silver halide color photographic material is an uncolored 5-pyrazolone 2-equivalent magenta coupler.The silver halide color photographic material has good latent image stability and a reduced layer thickness and thus improved sharpness. It is further possible thereby to avoid a decrease in color density and the formation of fog normally present when the silver halide color photographic material is brought into contact with formaldehyde vapor during storage prior to color development processing.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: January 16, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Jun Arakawa, Keiji Mihayashi
  • Patent number: 4892804
    Abstract: Photographic color developing compositions which are especially useful in the processing of high chloride silver halide photographic elements are free, or at least substantially free, of bromides; optionally contain a small amount of sulfite; and comprise (1) a primary aromatic amino color developing agent, (2) an N,N-dialkylhydroxylamine, (3) at least one sequestering agent which functions to sequester iron and (4) at least one sequestering agent which functions to sequester calcium. The developing compositions exhibit excellent stability. They also provide minimal development restraint which permits the use of very short development times, as needed for rapid access processing.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: January 9, 1990
    Assignee: Eastman Kodak Company
    Inventors: Sheridan E. Vincent, Richard W. Berls
  • Patent number: 4891309
    Abstract: A process for producing a silver halide photographic paper that has on a support at least one photographic constituent layer incorporating a silver halide developing agent and at least one photographic constituent layer containing both a polymer latex and an emulsified dispersion of an oil-soluble fluorescent brightener dissolved in a high-boiling point organic solvent wherein said emulsified dispersion is preliminarily mixed with said polymer latex, the resulting mixture then being incorporated in a selected photographic constituent layer.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: January 2, 1990
    Assignee: Konica Corporation
    Inventors: Yutaka Uesawa, Akira Kobayashi, Isamu Morimoto
  • Patent number: 4886737
    Abstract: Photographically produced black and white images (silver images) are stabilized against subsequent destruction of the image silver, in particular due to discoloration, by treating the finished silver image with an aqueous after treatment bath containing aminotetrazole or a mercaptotetrahydrotriazine.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: December 12, 1989
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Werner Berthold, Paul Marx, hlschlager
  • Patent number: 4880726
    Abstract: A method of forming a color image wherein a color print original is printed on a printing color photographic material and the thus printed material is then subjected to color development to give a color print, which is characterized in that a band stop filter having a half width of the spectral transmittance curve of said filter in a wavelength range outside the region of the maximum spectral sensitivity wavelength (.lambda.max).+-.20 nm of at least one light-sensitive layer of the printing color photographic material is provided between the light source to be used in said printing step and the light-sensitive layer of said printing color photographic material, and in that a compound of a general formula (I):(C.sub.p).X (I)wherein C.sub.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: November 14, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Shiba, Seiji Ichijima, Kei Sakanoue, Seiichi Taguchi
  • Patent number: 4873179
    Abstract: A method for processing a silver halide color photographic material which comprises, after color development of a silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one compound capable of releasing, upon a reaction with an oxidation product of a developing agent, a compound which is capable of releasing a development inhibitor upon a reaction with another molecule of an oxidation product of a developing agent, treating said photographic material with a liquid having a fixing ability, followed by processing thereof while replenishing washing water or a stabilizing solution in an amount of from 2 to 50 times the amount carried over from the preceding bath per unit area of the silver halide color photographic material.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: October 10, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Abe, Keiji Mihayashi, Seiji Ichijima
  • Patent number: 4863836
    Abstract: There is provided a method for processing a silver halide color photographic material which comprises processing the silver halide color photographic material with a color developer containing an aromatic primary amine color developing agent and a specific amino compound. According to this method the stability and color forming property of a color developer are improved so that the increased fogging problem in continuous processing is lessened and the processing time is shortened. There is also provided a color developer composition which can be used as the developer, as it is or after adjusting its composition.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: September 5, 1989
    Assignee: Fuji Photo Film, Co., Inc.
    Inventors: Takatoshi Ishikawa, Nobutaka Ohki, Morio Yagihara
  • Patent number: 4863837
    Abstract: In a method of processing a light-sensitive silver halide color photographic material, comprising color developing a light-sensitive silver halide color photographic material and thereafter processing it with a processing solution having fixing ability, followed by processing with a water-washing substitute stabilizing solution in a processing tank or tanks comprising 1 to 4 tanks, the improvement wherein said water-washing substitute stabilizing solution contains at least one of the compounds represented by Formula (I) shown below and at least one of nitrilotriacetic acid and the compounds represented by Formula (II) shown below and wherein said light-sensitive silver halide color photographic material is sensitized with at least one sensitizing dye represented by Formula (III) or Formula (IV) shown below: ##STR1## wherein R represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and M represents a hydrogen atom or an alkali metal atom; ##STR2## wherein A represents a carboxyl group or a hyd
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: September 5, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masayuki Kurematsu, Shigeharu Koboshi
  • Patent number: 4859575
    Abstract: Disclosed is a method for processing of a photographic material which comprises carrying out stabilizing processing of a photographic material with a stabilizing solution substantially without washing with water subsequent to the processing with a processing having fixing ability, wherein said stabilizing solution is subjected to electrodialysis treatment.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: August 22, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masayuki Kurematsu, Shigeharu Koboshi
  • Patent number: 4859574
    Abstract: A process for stabilizing the magenta dye image in a photographic color element comprises the steps of contacting the element with an aqueous stabilizing solution containing a water-soluble N-methylol compound and an alkaline buffering agent, subjecting the stabilized element to an aqueous wash to remove scum formed by the treatment with the stabilizing solution, and drying the element at an elevated temperature.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: August 22, 1989
    Assignee: Eastman Kodak Company
    Inventor: Thomas M. Gormel
  • Patent number: 4857442
    Abstract: The present invention provides an economical method for the processing of silver halide color photographic materials comprising fixing or bleach-fixing of the material followed by the washing thereof with a small amount of a washing replenisher. The present method is characterized in that the silver halide color photographic material to be processed contains at least one cyan dye-forming coupler of the following formula (I) or (II) and that the amount of the washing replenisher in the washing step falls within the range of 30 to 50 times of the amount of the processing solution carried over from a previous bath based on the unit area of the photographic material being processed, ##STR1## wherein, R.sub.1 represents --CONR.sub.5 R.sub.6, --NHCOR.sub.5, --NHCOOR.sub.7, --NHSO.sub.2 R.sub.7, --NHCONR.sub.5 R.sub.6 or --NHSO.sub.2 NR.sub.5 R.sub.6 ;R.sub.2 represents a substituent on the naphthol ring;m is an integer of 0 to 3;R.sub.3 represents a mono-valent organic group;R.sub.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: August 15, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Fujita, Toshihiro Nishikawa
  • Patent number: 4855216
    Abstract: A no-rinse processing method for the production of color photographic images comprising the steps of developing, bleaching, fixing and stabilizing, of which the bleaching and fixing steps may be combined into a bleach fixing step, gives dye images of satisfactory quality, even after prolonged use, if the stabilizing bath used in the stabilizing step contains an effective quantity of a pyrazole which, in one of the possible tautomeric forms, corresponds to the following general formula: ##STR1## in which X represents OH or NH.sub.2,R.sub.1 represents alkyl, substituted alkyl, aryl, substituted aryl or carboxyl,R.sub.2 represents hydrogen, alkyl or substituted alkyl,R.sub.3 represents hydrogen, alkyl, substituted alkyl, aryl or substituted aryl.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: August 8, 1989
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Heinz Meckl, Erika Spriewald, Gunter Renner
  • Patent number: 4855217
    Abstract: A processing method for silver halide color photosensitive material in which said silver halide color photosensitive material is treated with a processing solution that has a fixing ability, and then is not washed, but treated with a washless stabilizer solution, characterized in that said silver halide color photosensitive material is treated with said washless stabilizer in the presence of at least one compound among compounds represented by General Formula [1], [II], [II'], or [II"] shown below; and that said washless stabilizer contains more than 20 mg/l silver ion, and at least one aldehyde compound: ##STR1##
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: August 8, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masayuki Kurematsu, Shigeharu Koboshi
  • Patent number: 4855218
    Abstract: A method for processing silver halide photographic lightsensitive material in which there are used replenishers for water washing and/or stabilization processes in such manner that the concentrations of calcium and magnesium compounds present in the replenishers are not more than 5 mg/l on the basis of elemental calcium and magnesium respectively, and a part or whole of the overflow from the water washing and/or stabilization process is introduced into a process preceding the water washing and/or stabilization processes. This method makes it possible to save water, to diminish the amount of waste liquor and to make effective use of components contained in processing solutions, without impairing any properties of lightsensitive materials to be processed.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: August 8, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Fujita, Akira Abe
  • Patent number: 4853318
    Abstract: A process for processing color photographic papers using a color developer substantially free from benzyl alcohol and containing a compound represented by formula (I) ##STR1## wherein Z represents an atomic group forming an aromatic nucleus is disclosed. In the process, the formation of color stains is greatly reduced even in the case of shortening the processing times for the blix step and the wash and/or stabilization step after color development.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: August 1, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Fujita, Hiroshi Fujimoto, Takatoshi Ishikawa, Shinzo Kishimoto
  • Patent number: 4853321
    Abstract: A method of forming a color image and a silver halide color photographic material comprising a reflective support having thereon at least one light-sensitive layer containing at least one coupler which forms a dye upon a coupling reaction with an oxidation product of an aromatic primary amine color developing agent and a silver halide emulsion which contains at least 80% by mol of silver chloride and substantially no silver iodide the method comprising processing with a color developing solution which contains not more than 0.002 mol of a bromine ion per liter and substantially no benzyl alcohol for a development time of not more than 2 minutes and 30 seconds in the presence of at least one compound represented by the following formulae (I), (II), or (III), as defined in the specification.The method of forming a color image and the silver halide color photographic material according to the present invention enable rapid processing to be conducted while controlling the fog formation with high sensitivity.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: August 1, 1989
    Assignee: Fuji Photo Film, Co., Ltd.
    Inventors: Yasuhito Momoki, Masahiro Asami, Nobuo Sakai, Shigeaki Otani
  • Patent number: 4851325
    Abstract: A process for processing silver halide color photographic materials, which comprises processing, after image-wise exposure, a silver halide color photographic material with a color developer containing an aromatic primary amine color developing agent and a compound represented by the following general formula (I): ##STR1## wherein n represents an integer of at least 1; R represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group or the n-valent groups corresponding to the groups when n represents an integer of at least 2; and A represents an organic group containing a carbon atom, an oxygen atom, a nitrogen atom, or a sulfur atom and forms a saturated or unsaturated 3- to 8-membered ring with the nitrogen atom, said A is substituted or unsubstituted and may be condensed with a benzene ring or a heterocyclic ring.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: July 25, 1989
    Assignee: Fuji Photo Film Co., Inc.
    Inventors: Kiyoshi Morimoto, Hideaki Naruse
  • Patent number: 4851326
    Abstract: A silver halide color photographic material having at least one silver halide emulsion layer on a reflective support is, after having been imagewise exposed, subjected to color development with a color developer which does not substantially contain benzyl alcohol and which contains a bromide ion in an amount of 4.times.10.sup.-3 mol/liter or less, for a period of time of 2 minutes or less, to obtain a color images with a high colored density. The silver halide color photographic material specifically has at least one silver chlorobromide emulsion layer which does not substantially contain silver iodide and which contains silver chloride in an amount of 50 mol % or more.In the color images thus formed by the present process, the colored density is high and the fog is less.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: July 25, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Junya Nakajima
  • Patent number: 4849333
    Abstract: A method is disclosed for the processing of an imagewise exposed silver halide color photographic material, wherein at least one of wash water and a stabilizing solution used in a step subsequent to a bleach-fixing step or a fixing step following a bleaching step contains at least one compound represented by formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 each represents a hydrogen atom, a halogen atom, an alkyl group, a substituted alkyl group, an acyl group, a hydroxy group, an amino group, a nitro group, a carboxy group, or a sulfo group.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: July 18, 1989
    Assignee: Fuji Photo Cilm Co., Ltd.
    Inventor: Yoshihiro Fujita
  • Patent number: 4845015
    Abstract: An image stabilizer for silver halide photographic materials which contains a water-soluble bismuth compound is disclosed. In a preferred embodiment, the stabilizer also contains a water soluble chelating agent capable of forming a bismuth complex or its salt having a stability constant (-log KMA) of 3 or more, said constant being represented by formula (I):KMA=([MA]/[M] [A]) (I)wherein M is a bismuth ion and A is a complex forming anion. By using this stabilizer, the processed dye image is kept stable over an extended period and the occurrence of yellow stain in the non-image area is inhibited. The stabilizer is applicable not only to color photographic materials but also to black-and-white materials.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: July 4, 1989
    Assignee: Konishiroku Photo Industry Co,., Ltd.
    Inventors: Masayuki Kurematsu, Shigeharu Koboshi
  • Patent number: 4845016
    Abstract: A process for processing a silver halide color photographic material is described, which comprises processing by treatment with a color developer containing an aromatic primary amine developing agent but substantially free from benzyl alcohol, for a time shorter than 2 min and 30 sec, a silver halide color photographic material having on a support at least one photograph-constituting layer containing a compound represented by formula (I) ##STR1## wherein R.sub.0 represents a substituted or unsubstituted aryl group; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group; and Z represents a hydrogen atom or a substituted or unsubstituted acetyl group.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: July 4, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Nobuo Sakai
  • Patent number: 4840877
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains a magenta dye forming coupler represented by the general formula (I) and a compound represented by the general formula (II) in the same layer ##STR1## wherein R.sub.1 is represents an aromatic group, an aliphatic group or a heterocyclic group; R.sub.2 represents a substituent; Za, Zb, Zc and Zd, which may be the same or different, each represents an unsubstituted methine group, a substituted methine group or --N.dbd.,(R'--COO.sup.-).sub.n M.sup.n+ (II)wherein R' represents a substituent which imparts a diffusion-resistant property to the compound represented by the general formula (II); M.sup.n+ represents a hydrogen ion, a metal ion or an ammonium ion; and n represents an integer from 1 to 4.
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: June 20, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Abe, Keiji Mihayashi, Hidetoshi Kobayashi, Hirohiko Kato
  • Patent number: 4840878
    Abstract: A method for forming a color image is disclosed, which comprises imagewise exposing a multi-layer silver halide color photographic material comprising a reflective support having provided thereon at least three silver halide emulsion layers different in color sensitivity, each of which separately contains at least one coupler selected from a specific combination of cyan, magenta, and yellow couplers, and processing the exposed material with a color developing solution containing substantially no benzyl alcohol for a period of not more than 2 minutes and a half. A color image excellent in color reproducibility and preservability can be obtained rapidly without using benzyl alcohol.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: June 20, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takeshi Hirose, Nobuo Furutachi, Kozo Aoki, Kiyoshi Nakazyo, Genichi Furusawa
  • Patent number: 4835092
    Abstract: A novel method for processing a silver halide color photographic material is provided, which comprises processing a silver halide color photographic material having at least one silver halide emulsion layer on a reflective support with a color-developing solution substantially free of benzyl alcohol and containing at least one compound represented by formula (I) ##STR1## wherein R.sub.1 represents a hydrogen atom, --CH.sub.2 COOH, or ##STR2## R.sub.2 represents a hydrogen atom or --COOH; n represents an integer of 0 or 1; and Z represents atoms necessary for the formation of an aromatic ring.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: May 30, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Toshio Koshimizu, Yoshihiro Fujita, Hiroshi Fujimoto
  • Patent number: 4830948
    Abstract: A method of forming color photographic images where a silver halide color photographic material containing a coupler which forms a dye by reaction with the oxidation product of an aromatic primary amine developing agent and containing an acid-processed gelatin in an amount of 25% by weight or more of the amount of the total gelatin coated is color developed, desilvered and then rinsed in water and/or stabilized. The total of the processing time of said desilvering, rinsing-in-water and stabilization steps is controlled to be 3 minutes or less, and/or the amount of replenisher added to the rinsing-in-water bath and stabilization bath is controlled to be from 0.5 to 50 times of the amount of the processing solution which is brought into the rinsing-in-water bath and stabilization bath from the desilvering bath together with the material which is being processed.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: May 16, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Genichi Furusawa, Takeshi Hirose
  • Patent number: H789
    Abstract: A novel method for processing a silver halide color photographic material. The process comprises imagewise exposing a silver halide color photographic light-sensitive material to light, color-developing the light-sensitive material, and then desilvering the light-sensitive material, wherein: (a) said silver halide color photographic light-sensitive material contains a compound which reacts with an oxidation product of anaromatic primary amine color developing agent to form a bleaching accelerator, (b) the desilvering step is conducted with a processing solution containing a ferric complex salt of an organic acid, and (c) the total amount of replenisher of the processing solution to be used in the desilvering step satisfies either the following conditions (i) or (ii):(i) the total amount of replenisher is 1,000 ml or less per m.sup.2 of the light-sensitive material if the coated amount of silver per m.sup.2 of the light-sensitive material is 2.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: June 5, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinji Ueda, Kei Sakanoue, Seiji Ichijima, Hidetoshi Kobayashi
  • Patent number: H851
    Abstract: A silver halide color photographic material which contains at least one coupler represented by the general formula (I) or (II-A) and at least one compound represented by the following general formula (III) in the same light-sensitive silver halide layer: ##STR1## wherein R.sub.1 represents an alkyl group, an aryl group, or a heterocyclic group; R.sub.2 represents a hydrogen atom, or a substituent group; and X represents a hydrogen atom, or a coupling-off group; ##STR2## wherein R represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an oxy radical, or a hydroxyl group; R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, each represents a hydrogn atom, or an alkyl group; and A represents a nonmetallic atomic group necessary for forming a 5-, 6- or 7-membered ring; provided that R.sub.3 may be linked with R.sub.4, R.sub.5 may be linked with R.sub.6, R may be linked with R.sub.3, or R.sub.3 may be linked with A to form a 5- or 6-membered ring.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: November 6, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Masakazu Morigaki, Nobuo Seto